arch/arm64/boot/dts/freescale/imx8mp-hummingboard-pulse.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/freescale/imx8mp-hummingboard-pulse.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/freescale/imx8mp-hummingboard-pulse.dts
Extension
.dts
Size
1717 bytes
Lines
84
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Copyright 2025 Josua Mayer <josua@solid-run.com>
 */

/dts-v1/;

#include <dt-bindings/phy/phy-imx8-pcie.h>

#include "imx8mp-sr-som.dtsi"
#include "imx8mp-hummingboard-pulse-codec.dtsi"
#include "imx8mp-hummingboard-pulse-common.dtsi"
#include "imx8mp-hummingboard-pulse-hdmi.dtsi"
#include "imx8mp-hummingboard-pulse-m2con.dtsi"
#include "imx8mp-hummingboard-pulse-mini-hdmi.dtsi"

/ {
	model = "SolidRun i.MX8MP HummingBoard Pulse";
	compatible = "solidrun,imx8mp-hummingboard-pulse",
		     "solidrun,imx8mp-sr-som", "fsl,imx8mp";

	aliases {
		ethernet0 = &eqos;
		ethernet1 = &pcie_eth;
	};
};

&fec {
	/* this board does not use second phy / ethernet on SoM */
	status = "disabled";
};

&gpio1 {
	pinctrl-0 = <&mpcie_reset_pins>, <&m2_reset_pins>;
	pinctrl-names = "default";

	m2-reset-hog {
		gpio-hog;
		gpios = <6 GPIO_ACTIVE_LOW>;
		output-low;
		line-name = "m2-reset";
	};
};

&iomuxc {
	pinctrl-names = "default";
	pinctrl-0 = <&mikro_pwm_pins>, <&mikro_int_pins>, <&hdmi_pins>,
		    <&m2_wwan_wake_pins>;

	pcie_eth_pins: pinctrl-pcie-eth-grp {
		fsl,pins = <
			MX8MP_IOMUXC_SAI3_RXFS__GPIO4_IO28		0x0
		>;
	};
};

&pcie {
	pinctrl-0 = <&pcie_eth_pins>;
	pinctrl-names = "default";
	reset-gpio = <&gpio4 28 GPIO_ACTIVE_LOW>;
	status = "okay";

	root@0,0 {
		compatible = "pci16c3,abcd";
		reg = <0x00000000 0 0 0 0>;
		#address-cells = <3>;
		#size-cells = <2>;

		/* Intel i210 */
		pcie_eth: ethernet@1,0 {

Annotation

Implementation Notes